Use Ionic for a mobile website?

We are having a debate whether Ionic is a good approach for a purely mobile website, excluding native apps.

In most cases user acquisition happens through the mobile web channel, then one may lock in customers with a native app.

Having that said I’m curious to know how you guys think about the pros and cons for going with Ionic, instead of e.g. Bootstrap or Google Web Starter Kit.

So what you guys think about Ionic for mobile websites?